Perhaps you should try some spelling variations:
patch patterns » pitch pattern (Expand search), search patterns (Expand search), speech patterns (Expand search)
decrease patch » decrease with (Expand search), decrease at (Expand search)
decreased il » decreased in (Expand search), increased il (Expand search), decreased by (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decreased il decrease to decrease ) OR ( decrease AND decrease patch patterns ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decreased il decrease to decrease ) OR ( decrease and decrease patch patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decreased il decrease to decrease ) OR ( decrease and decrease patch patterns ))*.